Development of ultratrace laser spectrometry techniques for measurements of arsenic

Simeonsson, J. B.; Elwood, S. A.; Ezer, M.; Pacquette, H.L.; Swart, de Jam Joost; Beach, H.D; Thomas, David J.

doi:10.1016/s0039-9140(02)00267-9

Cited by 7 publications

(5 citation statements)

References 44 publications

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“…A recent review by Simeonsson and collaborators discusses the use of laser spectroscopy techniques for arsenic analysis [98]. A number of atomization sources are discussed, including ICP, ETA, rhenium-coil, LA, along with hybrid techniques involving hydride generation (HG) and high performance liquid chromatography (HPLC).…”

Section: Laser-induced Fluorescence Spectroscopymentioning

confidence: 99%

“…Limits of detection range from 4 (ICP) to 0.0003 ng/ml (HG) for aqueous samples [99-104]. Results were compared to other laser-based techniques and non-laser-based techniques, notably AFS and ICP mass spectrometry [98]. The majority of these studies, however, have been in aqueous solutions, though a few have studied diluted blood plasma [104-107] and plant tissue digests [98].…”

Section: Laser-induced Fluorescence Spectroscopymentioning

confidence: 99%

“…Results were compared to other laser-based techniques and non-laser-based techniques, notably AFS and ICP mass spectrometry [98]. The majority of these studies, however, have been in aqueous solutions, though a few have studied diluted blood plasma [104-107] and plant tissue digests [98]. An LA-flame-LEAFS approach was applied to As on glass slides, which has yielded LODs of 0.02-0.5 μg/g ablated material [98, 102].…”

Section: Laser-induced Fluorescence Spectroscopymentioning

confidence: 99%

“…The majority of these studies, however, have been in aqueous solutions, though a few have studied diluted blood plasma [104-107] and plant tissue digests [98]. An LA-flame-LEAFS approach was applied to As on glass slides, which has yielded LODs of 0.02-0.5 μg/g ablated material [98, 102]. The uncertainty in this value is due to the uncertainty in the ablation spot diameter.…”

Section: Laser-induced Fluorescence Spectroscopymentioning

confidence: 99%

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Laser Spectroscopy for Atmospheric and Environmental Sensing

Fiddler

Begashaw

Mickens

et al. 2009

Sensors

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Lasers and laser spectroscopic techniques have been extensively used in several applications since their advent, and the subject has been reviewed extensively in the last several decades. This review is focused on three areas of laser spectroscopic applications in atmospheric and environmental sensing; namely laser-induced fluorescence (LIF), cavity ring-down spectroscopy (CRDS), and photoluminescence (PL) techniques used in the detection of solids, liquids, aerosols, trace gases, and volatile organic compounds (VOCs).

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Section: Laser-induced Fluorescence Spectroscopymentioning

confidence: 99%

Section: Laser-induced Fluorescence Spectroscopymentioning

confidence: 99%

Section: Laser-induced Fluorescence Spectroscopymentioning

confidence: 99%

Section: Laser-induced Fluorescence Spectroscopymentioning

confidence: 99%

See 2 more Smart Citations

Laser Spectroscopy for Atmospheric and Environmental Sensing

Fiddler

Begashaw

Mickens

et al. 2009

Sensors

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“…4 Among these products, those based on animalderived ingredients are popular. 5 For example, horse oil and snail mucus extracts are currently widely used. 6 These natural products have minimal side effects, and they have the advantage of being suitable for sensitive skin.…”

mentioning

confidence: 99%

Lizard Tail Extracts Exert Protective Effect Against Oxidative Stress-Induced Cellular Senescence in Human Fibroblasts

Lee

Kim

Park

et al. 2019

Journal of Medicinal Food

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Lizards are the evolutionarily closest animals to humans among the self-renewable species. Recent reports show that lizard tail extracts (LTE) inhibit the proliferation and angiogenesis of cancer cells but do not show any toxicity against human fibroblast cells. Nevertheless, few scientific studies investigated the effects of LTE on the treatment of skin diseases, especially oxidative stress aging. Therefore, we explored the effect of LTE on the anti-aging activity of human fibroblasts. We confirmed the anti-aging effect of LTE by SA-b-galactosidase staining. In addition, the hydrogen peroxideinduced reactive oxygen species (ROS) were decreased by the LTE, as measured by staining with the 2 0 ,7 0-dichlorofluorescein diacetate reagent. We performed Western blot analysis to examine the signaling pathways. In conclusion, the LTE can prevent cellular senescence through the suppression of ROS and the downregulation of p21.

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Laser Spectrometric Techniques in Analytical Atomic Spectrometry

Axner

Galbács

2012

Encyclopedia of Analytical Chemistry

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The main purpose of this article is to describe the theory, instrumentation, and analytical performance of laser analytical atomic spectrometry, focusing on absorption, fluorescence, and ionization techniques. The structure of the article is such that it first provides an outline of the theory of light‐matter interactions that prevail for each type of technique as well as of the most common modulation techniques, primarily, wavelength modulation (WM). This is followed by a section that covers the most important types of instrumentation used. The article finally provides a detailed discussion on the specific instrumentation, mode of operation, use, performance, and applications (both analytical and diagnostic) of each technique. In terms of laser atomic absorption, the focus of the discussion is on the use of approaches to enhance the detection capability by either reducing the amount of noise (as is done by the wavelength modulation absorption spectrometry (WMAS) technique) or by providing an extended interaction length (giving rise to cavity‐enhanced absorption spectrometry (CEAS) techniques in general, and cavity ring‐down spectrometry (CRDS) in particular). Laser atomic fluorescence techniques (often referred to as laser‐excited atomic fluorescence spectrometry ( LEAFS )) as well as laser ionization techniques (termed either laser‐enhanced ionization ( LEI ) or resonance ionization spectrometry ( RIS )) are also covered in some detail. It is shown that several of these techniques are capable of detecting a variety of elements in liquid samples down to low picogram per milliliter (pg mL −1 ) or parts‐per‐trillion (ppt) concentrations and in low femtogram amounts. Also other properties of the techniques, e.g. selectivity and linear dynamic range (LDR), are in general superior to those of conventional (nonlaser‐based techniques).

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Development of ultratrace laser spectrometry techniques for measurements of arsenic

Cited by 7 publications

References 44 publications

Laser Spectroscopy for Atmospheric and Environmental Sensing

Laser Spectroscopy for Atmospheric and Environmental Sensing

Lizard Tail Extracts Exert Protective Effect Against Oxidative Stress-Induced Cellular Senescence in Human Fibroblasts

Laser Spectrometric Techniques in Analytical Atomic Spectrometry

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